Early std.crypto

[Piotr Szturmaj]

Walter Bright wrote:
> On 10/25/2011 3:40 PM, Piotr Szturmaj wrote:
>> I share your opinion. I was thinking about such filter concept for
>> std.crypto.cipher (TBD), but I will also try to convert current hash
>> function
>> code to ranges.
>>
>> Thanks for pointing that out.
>
> Andrei and I have pretty much failed at articulating this vision for
> Phobos. We need to get our act together.

Personally, I learned ranges from Phobos docs/src and Andrei's article 
about them. In the beginning I was surprised that I could not find any 
"range howto", yet on this NG some range designs were considered 
obvious. But I finally (somewhat) understood and used them in my 
postgres client implementation. And I like them.

I wish there was some article about ranges and their uses. Some tips and 
tricks thing for users and guidelines for range writers.

But let's get back to std.crypto. I planned to add input ranges to 
function put, because it already forms an output range. I thought that 
std.range.put() would serve the need if UFCS will be supported. But, as 
I guess, the best method is to support input ranges directly.